Apple has begun seeding the third update to its Safari Technology Preview, iOS 9.3.2 public beta 3, and OS X 10.11.5 developer beta 3. Safari’s update today includes changes in the way it works with JavaScript, CSS, web APIs, Web Inspector, rendering, security, networking and accessibility. iOS 9.3.2’s latest developer and public betas haven’t seen any major changes as it appears that this release is turning out to be more of a small bug fix release. Simultaneous use of Low Power Mode and Night Shift has been reactivated as of iOS 9.3.2 beta 2.

Apple pushed the first OS X 10.11.5 betas three weeks ago, focusing primarily on under-the-hood bug fixes and improvements for developers. These updates are far smaller than the recent OS X 10.11.4 updates that were released last month. That OS X update added password-protected Notes, expanded Live Photos support, and more.

The third tvOS 9.2.1 hotfix developer beta is available as well.

These small updates look to be bug fix-focused releases potentially looking to improve general stability before the next operating systems are set to be announced at this year’s WWDC. Developers looking to get caught up on the beta builds and read through the release notes can head over to Apple’s Developer Center for more information. You can learn more about testing public betas through Apple’s Beta Software Program.

If you discover any unmentioned changes in the latest public betas, email tips@9to5mac.com or mention us on Twitter @9to5mac to let us know.